Polimeros,Ciencia e Tecnologia | |
Accurate measurement of pitch-based carbon fiber electrical resistivity | |
article | |
Caroline Jovine Bouças Guimarães1  Alcino Palermo de Aguiar1  Alexandre Taschetto de Castro2  | |
[1] Departamento de Química, Instituto Militar de Engenharia – IME;Seção de Tecnologia de Materiais de Carbono – STMC, Centro Tecnológico do Exército – CTEx | |
关键词: carbon fiber; four-probe method; mesophase-pitch; electrical resistivity; | |
DOI : 10.1590/0104-1428.08720 | |
来源: Brazilian Academy Of Neurology | |
【 摘 要 】
This study investigated the appropriate methodology required to measure single carbon fibers electrical resistivity. Twoand four-probe methods were evaluated for this measurement. Comparing results for single filaments of pitch-based and PAN-based fibers shows that the two-probe method gives acceptable results for PAN-based fibers, but much higher deviations from adjusted resistivity for pitch-based fibers (>15%). The four-probe method shows small deviations (<1%) for both precursors and is the most suitable for measurements of pitch-based carbon fibers. The four-probe method gives higher accuracy than the two-probe for all samples tested.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO202108200003607ZK.pdf | 1191KB | download |